Toothbrush



FIG. 1 is a top, front, and left side perspective of a toothbrush embodying my new design.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a left side view thereof, the right side being a mirror image.

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Shown in phantom lines are bristle features, button features and grip features of the toothbrush which form no part of the claimed design. 

The ornamental design for a toothbrush, as shown and described. 